get address of object if opCast is overridden

[Timon Gehr]

On 12/01/2012 06:23 PM, Jonathan M Davis wrote:
> On Saturday, December 01, 2012 12:05:49 Artur Skawina wrote:
>>> So, unless there's a way to do it without a cast, you're stuck. And I have
>>> no idea how you could possibly do it without a cast.
>>
>>     *cast(void**)&O // assuming O is a class
>
> Are you sure? I'd be _very_ wary of that, because references aren't the same
> as pointers. I don't believe that there's any guarantee whatsoever that that
> will work, even if it happens to work now (which it may or may not).
>
> - Jonathan M Davis
>

Certainly works now. Another workaround that would keep working if class 
references were not pointers is:

((Object o)=>cast(void*)o)(O) // assuming O is the class object